Gaming Technology -- Graphical Processing Units
The primary vendors for graphical processing units are Intel with their Laterbee due out in 2010, NVidia and AMD/ATI.
GPUs work particularly well for parallel programming which is where they come into use for virtual instrumentation. You can see more about the underlying architecture here. LabVIEW which provides parallel programming through a graphical interface needs an underlying hardware technology to realize the full potential of the language. While GPUs are not the only answer, they are part of it.
Applications for graphical processor units in the world of virtual instrumentation include parallel control of high performance applications such as found in a medical device for numerical computation, a large array of actuators for controlling an accelerator ring, or simulation of flow control system with a large number of variables to compute.